pub fn s(var:u64){
    std::thread::sleep(std::time::Duration::from_secs(var));
}
pub fn ms(var:u64){
    std::thread::sleep(std::time::Duration::from_millis(var));
}
pub fn us(var:u64){
    std::thread::sleep(std::time::Duration::from_micros(var));
}
pub fn ns(var:u64){
    std::thread::sleep(std::time::Duration::from_nanos(var));
}

